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le: Fix segv in le.c #3927

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merged 1 commit into from
Oct 19, 2023
Merged

le: Fix segv in le.c #3927

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13 changes: 13 additions & 0 deletions librz/bin/format/le/le.c
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Original file line number Diff line number Diff line change
Expand Up @@ -808,6 +808,13 @@ static RZ_OWN LE_page *le_load_pages(rz_bin_le_obj_t *bin) {
ut32 voff = 0;
LE_page *page = &le_pages[obj->page_tbl_idx - 1];
for (ut32 i = 0; i < obj->page_tbl_entries; i++, page++) {
unsigned int pi = (obj->page_tbl_idx - 1) + i;
if (pi >= h->mpages) {
RZ_LOG_ERROR("LE: object #%u page table entry index %u is out "
"of range.\n",
oi + 1, pi + 1);
goto fail_cleanup;
}
page->obj_num = oi + 1;
page->vaddr = obj->reloc_base_addr + voff;
page->vsize = h->pagesize;
Expand Down Expand Up @@ -1016,6 +1023,12 @@ static RzVector /*<LE_map>*/ *le_create_maps(rz_bin_le_obj_t *bin) {
size_t len_before = rz_vector_len(le_maps);
ut32 beg = obj->page_tbl_idx - 1, end = beg + obj->page_tbl_entries;
for (ut32 pi = beg; pi != end; pi++) {
if (pi >= h->mpages) {
RZ_LOG_ERROR("LE: object #%u page table entry index %u is out "
"of range.\n",
oi + 1, pi + 1);
goto fail_cleanup;
}
LE_page *page = &bin->le_pages[pi];
m.first_page_num = pi + 1;
if (page->type == PAGE_LEGAL) {
Expand Down
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